package com.itheima.service.impl;

import com.itheima.aop.MyLog;
import com.itheima.mapper.DeptMapper;
import com.itheima.mapper.EmpMapper;
import com.itheima.pojo.Dept;
import com.itheima.pojo.DeptLog;
import com.itheima.service.DeptLogService;
import com.itheima.service.DeptService;
import com.itheima.service.EmpService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.time.LocalDateTime;
import java.util.List;

@Service
public class DeptServiceImpl implements DeptService {
    @Autowired
    private DeptMapper deptMapper;
    @Autowired
    private EmpMapper empMapper;
    @Autowired
    private DeptLogService deptLogService;

    /**
     * 查询部门
     * @return
     */
    @MyLog
    @Override
    public List<Dept> list() {
        return deptMapper.list();
    }
    /*
     * 根据id删除部门
     */
    //默认情况下,只有出现RuntimeException才会回滚异常。rollbackFor属性用于控制出现任何异常类型,回滚事务
//    @Transactional(rollbackFor = Exception.class) //Spring 事物管理
    @Transactional
    @Override
    @MyLog
    public void delete(Integer id) throws Exception {
        try {
            deptMapper.deleteById(id);//更具ID删除部门数据
//        if (true){
//            throw new Exception("出现异常");
//        }
            empMapper.deleteDeptById(id);//更具部门ID删除部门下的员工;
        } finally {
            DeptLog deptLog = new DeptLog();
            deptLog.setCreateTime(LocalDateTime.now());
            deptLog.setDescription("执行解散部门的操作,此次解散的是"+id+"号部门");
            deptLogService.insert(deptLog);
        }
    }

    /**
     * 新增部门
     * @param dept
     */
    @Override
    public void add(Dept dept) {
        dept.setCreateTime(LocalDateTime.now());
        dept.setUpdateTime(LocalDateTime.now());
        deptMapper.insert(dept);
    }

    /**
     * 修改部门
     * @param dept
     */
    @Override
    public void update(Dept dept) {
        dept.setUpdateTime(LocalDateTime.now());
        deptMapper.update(dept);
    }
}
